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Ohio's Academic Content Standards in Mathematics

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Return to Grade 9 Indicators

Ohio Standard: Patterns, Functions and Algebra Standard
Grade Level Indicator: (Grade: 9) 7. Use formulas to solve problems involving exponential growth and decay.
1
Understanding Models of Exponential Growth and Decay
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ORC# 9000
Resource Information
Resource URL: http://www.nsa.gov/academia/_files/collected_learning/high_schoo...
Resource Type: Instructional Resource -- Best Practice
Discipline: Mathematics
Ohio Standards Alignment: Grades 8–11
Professional Commentary: This unit provides students with a conceptual introduction to exponential growth and decay through examples of compound interest, car depreciation, and bouncing balls. Teacher resource sheets, student activity sheets, detailed problem solutions, and extensions are included....
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2
Rhinos and M & Ms
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ORC# 117
Resource Information
Resource URL: http://www.pbs.org/teachers/mathline/lessonplans/pdf/hsmp/rhinos...
Resource Type: Instructional Resource -- Promising Practice
Discipline: Mathematics
Ohio Standards Alignment: Grades 8–10
Professional Commentary: In activities that use paper folding and M&M's, students collect data, create scatterplots, and determine algebraic models that represent their functions. Students begin this lesson by collecting data within their groups....
Projects: COR
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3
NAEP Assessment Item, Grade 12: Determine the initial number of bacteria in a sample (calculator available)
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ORC# 11329
Resource Information
Resource URL: http://nces.ed.gov/nationsreportcard/itmrls/portal.asp?questionl...
Resource Type: Assessment Resource
Discipline: Mathematics
Ohio Standards Alignment: Grades 9–12
Professional Commentary: Given an equation for exponential growth, students are asked to find the initial population. This multiple-choice question is a "hard" test item used in grade 12 in the 2005 National Assessment of Educational Progress (see About NAEP)....
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4
NAEP Assessment Item, Grade 12: Amount in Savings Account After 6 Months
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ORC# 2085
Resource Information
Resource URL: http://nces.ed.gov/nationsreportcard/itmrls/portal.asp?questionl...
Resource Type: Assessment Resource
Discipline: Mathematics
Ohio Standards Alignment: Grades 8–12
Professional Commentary: This item asks students to find the total amount in a savings account after six months given the interest rate per month. Students have the option of using a calculator....
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